Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
  • C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
  • C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
  • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
  • A01N43/647—Triazoles; Hydrogenated triazoles
  • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C327/00—Thiocarboxylic acids
  • C07C327/58—Derivatives of thiocarboxylic acids, the doubly-bound oxygen atoms being replaced by nitrogen atoms, e.g. imino-thio ethers

Definitions

• This invention provides new compounds that are useful as insecticides and acaricides, new synthetic procedures and intermediates for preparing the compounds, pesticide compositions containing the compounds, and methods of controlling insects and mites using the compounds .
• This invention provides novel compounds especially useful for the control of insects and mites. More speci ically, the invention provides novel insecticidally active compounds of the formula (1)
• Ar is a group of the formula
• R 7 and R 8 are independently H, Cl, F, methyl, halomethyl, methoxy, or halomethoxy;
• R 1 is lower alkyl, haloalkyl, lower alkenyl, lower alkynyl, or benzyl;
• R 2 is H, Cl, Br, lower alkyl, lower alkenyl, lower alkynyl, alkoxyalkyl;
• R 2 and R 3 are other than H;
• R 4 , R 5 , and R 5 ' are independently H, halo, lower alkyl, lower alkoxy, haloalkyl, haloalkoxy, CN, C0 2 R 6 , CON(R6) 2 , or S(0) m alkyl, or
• R 4 and R 5 , or R 2 and R 5 form a 5 or 6 member saturated or unsaturated carbocyclic ring which may be substituted by 1 or 2 halo, lower alkyl, lower alkoxy or haloalkyl groups; or
• R 6 is H, lower alkyl, haloalkyl, lower alkenyl, lower alkynyl, phenyl, or substituted phenyl; m is 0, 1, or 2; and n is 1 or 2; p is an integer from 2 to 6; or a phytologically acceptable acid addition salt thereof .
• Preferred compounds of formula (1) include the following classes: (1) Compounds of formula (1) wherein R 7 and R 8 are independently F or Cl.
• the invention also provides new processes and intermediates for preparing compounds of formula (1) as well as new compositions and methods of use, which will be described in detail hereinafter. Detailed Description Of The Invention
• lower alkyl refers to (C ⁇ Cg) straight hydrocarbon chains and (C 3 -C 6 ) branched and cyclic hydrocarbon groups.
• lower alkenyl and “lower alkynyl” refer to (C 2 -C 6 ) straight hydrocarbon chains and (C -C 6 ) branched hydrocarbon groups containing at least one double or triple bond, respectively.
• lower alkoxy refers to -0-lower alkyl.
• halomethyl refers to methyl, lower alkyl, and lower alkenyl groups substituted with one or more halo atoms.
• halomethoxy and haloalkoxy refer to methoxy and lower alkoxy groups substituted with one or more halo atoms.
• alkoxyalkyl refers to a lower alkyl group substituted with a lower alkoxy group.
• alkoxyalkoxy refers to a lower alkoxy group substituted with a lower alkoxy group.
• substituted naphthyl refers to the ring system substituted with one or more groups independently selected from halo, halo (Ci-Cj) alkyl, CN, N0 2 , (C 1 -C 4 ) alkyl, (C 3 -C ) branched alkyl, phenyl, ( ⁇ -0 4 ) alkoxy, or halo (C ] _-C 4 ) alkoxy.
• substituted phenyl refers to a phenyl group substituted with one or more groups independently selected from halo, (C J ⁇ -C ⁇ Q ) alkyl, branched (C -C 6 ) alkyl, halo (C 1 -C 7 ) alkyl, hydroxy (C 1 -C 7 ) alkyl, (C 1 -C 7 ) alkoxy, halo (C 1 -C 7 ) alkoxy, phenoxy, phenyl, N0 2 , OH, CN, alkanoyl, benzoyl, (C]_-C 4 ) alkanoyloxy, (C 1 -C ) alkoxycarbonyl, phenoxycarbonyl, or benzoyloxy. Unless otherwise indicated, when it is stated that a group may be substituted with one or more substituents selected from an identified class, it is intended that the substituents may be independently selected from the class .
• methyl hydrazine (42.2 g, 0.916 mol) and THF (100 mL) .
• the temperature of the mixture was cooled to 5 °C and a solution of di-tert-butyl dicarbonate (100 g, 0.458 mol) dissolved in THF (150 mL) was added dropwise.
• the cooling bath was removed and the mixture was stirred at RT overnight.
• the liquid was decanted from a gummy precipitate and the solvent removed in vacuo to give approximately 70 grams of a clear liquid.
• the gummy precipitate was partitioned between methylene chloride and water.
• N-methyl-N-t-butoxycarbony-2 , 6-difluorophenylamidrazone (5.9 mmol., 1.68 g.), 2, 2-dichloro-l-methyl- cyclopropanecarbonyl chloride ( 5.9 mmol., 1.106 g.), and potassium carbonate ( 5.9 mmol., 0.814 g.) were combined in toluene ( 60 ml.) and refluxed overnight. Solvent was removed. Chroir.atography (Si ⁇ 2, 5 - 10% EtOAc-CH2Cl2 ) afforded the product as a white solid (260 mg., 0.82 mmol., 14% yield). MP 77-80 °C.
• R 1 through R 5' are as defined in formula (1) above.
• the coupling is done with a dehydrating agent such as 1, 3-dicyclohexylcarbodiimide .
• a dehydrating agent such as 1, 3-dicyclohexylcarbodiimide .
• the coupling, isolation of the intermediate, and subsequent deprotection and ring closure are illustrated in Examples 2 and 3 below.
• R 2 to R 5' are as defined in formula (1) .
• Aryl acyl (thio) imidates of type (8) are known in the literature and can be used as their acid addition salt. In this case, tetrafluoroboric acid, hydrogen chloride, hydrogen bromide, hydrogen iodide, or the like, may be used.
• Aryl acylimidates are available through the nitrile, as illustrated in J.Org.Chem. Vol. 33, p.1679, 1968, and are also available through a process outlined in US Patent No. 4,025,504.
• Thioimidates are readily available through alkylation of the corresponding thioamides which are themselves commercially available or can be made from the amide (Phosphorus Sulfur (1985), 25(3), 297-305) or nitrile (Chem.-Ztg. (1980), 104(12), 365-7); J. Chem. Soc. (1952), 742; Can. J. Chem. (1985), 63, 3075).
• Reaction of the cyclopropyl acid chloride (2) and the imidate (8) to give the adduct (4) can generally be accomplished in any inert solvent with any organic or inorganic base.
• Reaction of compounds such as (4) with methyl hydrazine gives the titled triazoles, generally in good yield with a high degree of regiospecificity . A specific example of this reaction is given in Synthesis, 483 (1983).
• reaction mixture was washed with 2N NaOH (2 X 150 mL) , with 2N HCl, brine, and then dried (Na 2 S0 4 ) .
• the solvent was evaporated and the residue was chromatographed on silica gel (hexanes/ethyl acetate, 10:90 to 15:85 to give the product (9.25 g) as white crystals, mp 106-108.
• CA “1” refers to activity at 50 ppm against cotton aphid
• TSSM* refers to activity at 100 ppm against two-spotted spider mite
• WF * refers to activity at 200 ppm against whitefly.
• the compounds of the formulae (1) are suitable for controlling pests on animals and plants.
• pests belong mainly to the arthropod family, such as, especially, insects of the orders Lepidoptera, Coleoptera, Homoptera, Heteroptera, Diptera, Thysanoptera, Orthoptera, Anoplura, Siphonaptera, Mallophaga, Thysanura, Isoptera, Psocoptera or Hymenoptera, and arachnids of the order Acarina, such as, for example, mites, aphids, and ticks.
• the present invention also is directed to a method for inhibiting an insect, mite, or aphid which comprises applying to a locus of the insect or mite an insect- or mite-inhibiting amount of a compound of formula ( 1 ) .
• the compounds are useful for reducing populations of insects and mites and are useful in a method of inhibiting an insect or mite population which comprises applying to a locus of the insect or mite an effective insect- or mite-inactivating amount of a compound of formula (1).
• locus of insects or mites is a term used herein to refer to the environment in which the insects or mites live or where their eggs are present, including the air surrounding them, the food they eat, or objects which they contact.
• plant-ingesting insects or mites can be controlled by applying the active compound to plant parts that the insects or mites eat, particularly the foliage. It is contemplated that the compounds might also be useful to protect textiles, paper, stored grain, or seeds by applying an active compound to such substance.
• inhibiting an insect or mite refers to a decrease in the numbers of living insects or mites, or a decrease in the number of viable insect or mite eggs.
• the extent of reduction accomplished by a compound depends, of course, upon the application rate of the compound, the particular compound used, and the target insect or mite species. At least an inactivating amount should be used.
• the terms "insect- inactivating amount” and “mite-inactivating amount” are used to describe the amount, which is sufficient to cause a measurable reduction in the treated insect or mite, population. Generally an amount in the range from about 1 to about 1000 ppm active compound is used.
• the present invention is directed to a method for inhibiting a mite or aphid which comprises applying to a plant an effective mite- or aphid- inactivating amount of a compound of formula (1) .
• Squash cotyledons were infested with cotton aphid (all life stages) 16-20 hours prior to application of spray solution.
• the solution was sprayed on both sides of each infested squash cotyledon (0.5 mL X 2 each side) with a sweeping action until runoff.
• the plants were allowed to air dry and held for 3 days in a controlled room at 26° C and 40 % RH after which time the test was graded. Grading was by actual count using a dissecting microscope and comparison of test counts to the untreated check. Results are given in Table 1 as percent control based on population reduction versus the untreated.
• each test compound was dissolved by adding 4 ml of a 90:10 acetone : ethanoi solvent mixture to the vial containing the sample compound. This solution was added to 16 ml of water containing 0.05% Tween 20 surfactant to produce 20 ml of an 200 ppm spray solution.
• Another aspect of the invention is a method of protecting a plant from insects which comprises treating plant seed prior to planting it, treating soil where plant seed is to be planted, or treating soil at the roots of a plant after it is planted, with an effective amount of a compound of formula ( 1 ) .
• compositions which are important embodiments of the invention, and which comprise a compound of this invention and a phytologically-acceptable inert carrier.
• the compositions are either concentrated formulations which are dispersed in water for application, or are dust or granular formulations which are applied without further treatment.
• the compositions are prepared according to procedures and formulae which are conventional in the agricultural chemical art, but which are novel and important because of the presence therein of the compounds of this invention. Some description of the formulation of the compositions will be given, however, to assure that agricultural chemists can readily prepare any desired composition.
• the dispersions in which the compounds are applied are most often aqueous suspensions or emulsions prepared from concentrated formulations of the compounds.
• Such water-soluble, water-suspendable or emulsifiable formulations are either solids, usually known as wettable powders, or liquids usually known as emulsifiable concentrates or aqueous suspensions.
• Wettable powders which may be compacted to form water dispersible granules, comprise an intimate mixture of the active compound, an inert carrier, and surfactants.
• the concentration of the active compound is usually from about 10% to about 90% by weight.
• the inert carrier is usually chosen from among the attapulgite clays, the montmorillonite clays, the diatomaceous earths, or the purified silicates.
• Effective surfactants comprising from about 0.5% to about 10% of the wettable powder, are found among the sulfonated lignins, the condensed naphthalenesul onates, the naphthalenesulfonates, the alkylbenzenesulfonates, the alkyl sulfates, and nonionic surfactants such as ethylene oxide adducts of alkyl phenols .
• Emulsifiable concentrates of the compounds comprise a convenient concentration of a compound, such as from about 50 to about 500 grams per liter of liquid, equivalent to about 10% to about 50%, dissolved in an inert carrier which is either a water miscible solvent or a mixture of water-immiscible organic solvent and emulslfiers.
• a compound such as from about 50 to about 500 grams per liter of liquid, equivalent to about 10% to about 50%, dissolved in an inert carrier which is either a water miscible solvent or a mixture of water-immiscible organic solvent and emulslfiers.
• Useful organic solvents include aromatics, especially the xylenes, and the petroleum fractions, especially the high-boiling naphthalenic and olefinic portions of petroleum such as heavy aromatic naphtha.
• organic solvents may also be used, such as the terpenic solvents including rosin derivatives, aliphatic ketones such as cyclohexanone, and complex alcohols such as 2-ethoxyethanol .
• Suitable emulsifiers for emulsifiable concentrates are chosen from conventional nonionic surfactants, such as those discussed above.
• Aqueous suspensions comprise suspensions of water- insoluble compounds of this invention, dispersed in an aqueous vehicle at a concentration in the range from about 5% to about 50% by weight.
• Suspensions are prepared by finely grinding the compound, and vigorously mixing it into a vehicle comprised of water and surfactants chosen from the same types discussed above.
• Inert ingredients such as inorganic salts and synthetic or natural gums, may also be added, to increase the density and viscosity of the aqueous vehicle. It is often most effective to grind and mix the compound at the same time by preparing the aqueous mixture, and homogenizing it in an implement such as a sand mill, ball mill, or piston-type homogenizer.
• the compounds may also be applied as granular compositions, which are particularly useful for applications to the soil.
• Granular compositions usually contain from about 0.5% to about 10% by weight of the compound, dispersed in an inert carrier which consists entirely or in large part of clay or a similar inexpensive substance.
• Such compositions are usually prepared by dissolving the compound in a suitable solvent and applying it to a granular carrier which has been preformed to the appropriate particle size, in the range of from about 0.5 to 3 mm.
• Such compositions may also be formulated by making a dough or paste of the carrier and compound and crushing and drying to obtain the desired granular particle size.
• Dusts containing the compounds are prepared simply by intimately mixing the compound in powdered form with a suitable dusty agricultural carrier, such as kaolin clay, ground volcanic rock, and the like. Dusts can suitably contain from about 1% to about 10% of the compound.
• Insecticides and acaricides are generally applied in the form of a dispersion of the active ingredient in a liquid carrier. It is conventional to refer to application rates in terms of the concentration of active ingredient in the carrier. The most widely used carrier is water.
• the compounds of the invention can also be applied in the form of an aerosol composition.
• the active compound is dissolved or dispersed in an inert carrier, which is a pressure- generating propellant mixture.
• the aerosol composition is packaged in a container from which the mixture is dispensed through an atomizing valve.
• Propellant mixtures comprise either low-boiling halocarbons, which may be mixed with organic solvents, or aqueous suspensions pressurized with inert gases or gaseous hydrocarbons .
• the actual amount of compound to be applied to loci of insects, mites, and aphids is not critical and can readily be determined by those skilled in the art in view of the examples above. In general, concentrations of from 10 ppm to 5000 ppm of compound are expected to provide good control. With many of the compounds, concentrations of from 100 to 1500 ppm will suffice.
• a suitable application rate for the compounds is about 0.5 to 1.5 lb/A, typically applied in 5-20 gal/A of spray formulation containing 1200 to 3600 ppm of compound.
• a suitable application rate is from about 100 to 1500 gal/A spray formulation, which is a rate of 100 to 1000 ppm.
• the locus to which a compound is applied can be any locus inhabited by an insect or arachnid, for example, vegetable crops, fruit and nut trees, grape vines, and ornamental plants.
• an insect or arachnid for example, vegetable crops, fruit and nut trees, grape vines, and ornamental plants.
• the foregoing list of mite species provides exemplification of the wide range of settings in which the present compounds can be used. Because of the unique ability of mite eggs to resist toxicant action, repeated applications may be desirable to control newly emerged larvae, as is true of other known acaricides.
• PLURONIC P-103 block copolymer of propylene 1.50% oxide and ethylene oxide, surfactant
• PROXEL GXL bio ⁇ ide/preservative .05%
• AF-100 silicon based antifoam agent .20%
• POLYFON H lignosulfonate dispersing agent 0.20%

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Pest Control & Pesticides (AREA)
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• Wood Science & Technology (AREA)
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• Plural Heterocyclic Compounds (AREA)

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• 1999
  • 1999-10-22 ES ES99970986T patent/ES2205944T3/es not_active Expired - Lifetime
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  • 1999-10-22 PT PT99970986T patent/PT1123281E/pt unknown
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